神舟二十一号载人飞船入轨后，将采用自主快速交会对接模式，约3.5小时后对接于天和核心舱前向端口，形成三船三舱组合体

Core Points - The Shenzhou-21 manned spacecraft has successfully entered orbit and will utilize an autonomous rapid rendezvous and docking mode [1] - The docking with the Tianhe core module is expected to occur approximately 3.5 hours after entering orbit, resulting in a combination of three spacecraft and three modules [1]